Ahvaz (Iran) is a city with air pollution in the world, with the dust content to nearly 20 times the permitted level of the World Health Organization.
Last September the past, the World Health Organization (WHO) released survey results on the level of air pollution worldwide.
To assess the level of air pollution, the survey based on the amount of dust in the air, known as PM10, that is kind of dust is smaller than 10 micrometers. Subjects of this investigation is more than 1,100 cities in many countries across the globe. According to WHO, if the dust concentration exceeds 20 microgram/m3, human health will be affected, namely cause respiratory diseases such as lung cancer, respiratory infections ...
In the list of 10 cities most severe air pollution in the world, were among the cities in India, Pakistan, Iran.
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10. Lahore (Pakistan) concentration of dust in air is 200 microgram/m3. This is the second largest city in Pakistan and is the economic center of the country. This place is famous for the transport system both public and privately run smoothly 24 hours a day, 7 days a week. The main traffic flow is a major cause of pollution in this city. |
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9. Kanpur (India) concentration of dust in air is 209 microgram/m3.The city is focused around five million people, with the main economic activity is the manufacture and export of textiles and garments, leather. Haze from factories plus population is east of the causes contributing to environmental pollution here. |
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8. Yasouj (Iran) is a 215 microgram/m3 dust content. Yasouj city is home to many manufacturing lines, electricity, coal, electricity supply for the city. Currently, the city is continuing to build private refineries. These are the factors leading to environmental pollution in this city. |
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7. Gaborone (Botswana) concentration of dust in air is 216 microgram/m3. Goborone the capital, and is the largest city in Botswana. With growth on the order of the fastest in Africa, plus the dry autumn and pollution emissions from older vehicles that contribute to greater Gaborone pollution into the air today. |
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6. Peshawar (Pakistan) concentration of dust in air is 219 microgram/m3. The main reason is because the workers from big cities come here to work are increasing, making the state urban expansion takes place continuously. |
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5. Kermanshah (Iran) concentration of dust in air is 229 microgram/m3. Kermanshah is a city located in west of Iran, concentrated manufacturing and oil refining. This is one of the causes of air pollution here. |
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4. Rated 4 tie in the ranking of the two cities WHO Ludhiana (India) and Quetta (Pakistan), the dust content in air is 251 microgram/m3. Ludhiana is Punjab's largest city and is one of the richest cities in India. The major cause of pollution, dust in the air where it is due to 50% production bike for the country, 60% of tractors for the region. In Quetta Pakistan's diverse ecology but is umbilical transport, especially railways and airways. |
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3. Sanandaj (Iran) contain high levels of dust in air is 254 microgram/m2. This city has many manufacturing industries such as cotton, wood products, carpets ... But outside the city of beautiful mountain scenery, but in the city, pollution levels are high, affecting human health. |
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2. Ulaan Baatar (Mongolia) contain high concentrations of pollutants in air is 279 microgram/m3. Ulaan Baatar is not only capital but also the economic center, transportation hub of the Mongols. The cause of pollution is due here very much focused industries such as textiles, cement, food ... |
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1. Ahvaz (Iran) is the most polluted cities in the world with 372 microgram/m3 dust content, almost 20 times higher than permitted levels of WHO. The main reason is because it is a major petroleum transportation umbilical and economic center of the country. The main industry in this city is silk, sugar ... |
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